M & W Minerals
Walter R. Kellogg
517 294 6709
Franklin Mine, Franklin, Sussex Co., New Jersey
4.4 x 4.4 x 3.3 cm
$45 Click here to order this mineral.
Ex. Steve Pullman
Troostite is a manganese rich Willemite and was once considered a distinct mineral. The Troostite is the brick colored material which makes up the majority of the specimen. Veins of massive black Franklinite are also present.